Spring-mounting.



T. w. DUNN.

SPRING MOUNTING.

APPLICATION FILED JAN. 31, 1912.

Patented Oct. 15, 1912.

2 SHEETS-SHEET 1.

- H II T. W. DUNN. SPRING MOUNTING. APPLIOATIOH FILED JAN. 31, 1912.

1, 041,255. Patented 0ct.15,1912.

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i plan view 0 mom W. DUNN, OF OIL CITY, PENNSYLVANIA.

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Bpeeiflcation of Letters Patent.

Patented Oct. 15,1912.

Application filed January 31, 1912. Serial No. 674,502.

To all whom it may concern:

Be it known that I, Trroms W. DUNN a citizen of the United States, residin at (sil City, in. the county of Venango and tate of Pennsylvania, have invented certain new and useful Im rovementsin Spring-Mounting, of which t e following is a specification.

he present invention relates to a sprlng mounting particularly adapted for use 1n connection with automobiles and other An important ob'ect of my invention is to providemeans of t e above mentioned character which will take up all of the primary and secondary shocks in a manner to cause the least inconvenience to the operator of the vehicle.

A. further object of the invention is to provide means of the above mentioned character, which are strong, durable, and not liable to derangements.

Other ebiects and advantages of the ,invention wil be a parent during the course of the following escription,

In the aecnmpanying drawings formin a part of this specification and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a vation thereof, Fig. 3 is a bottom plan view, and, Fig. 4 is an end view of the same, parts being omitted.

In the drawings wherein for the sake of illustration, I have shown a preferred embodiment of and 2 designate front and rear axles, which carry wheels 3. spring mounting. This spring mounting comprises longitudinal beams 4, which are rigi ly connected at their opposite ends with the axles 1 and 2, as shown. At the forward ends of the longitudinal beams 4 are disosed leaf-sprin s 5, comprising upper and ower sets 6 an 7, pivotally connected at their outer ends. The lower sets 7 are rigidly connected with the beams 4 b bolts v8 or'the like.1 lfkt the rear ends of e beams 4 are end ea springs 9, compris' u per and lower sets 10 and 11, which are ivoiiilly connected at their outer ends. The lower set 11 is rigidly connected with the beam 4 by means of bolts 12. The beams 4 and axles 1 and 2 form in effect a main rigid frame.

The spring mounting comprises an inner or auxihary rigid frame formed of longituthe device, Fig. 2.is a side elethrough openings in the beams 4 an my invention, the numerals 1 These axles support the dinal beams'13, rigidly connected near their.

ends with transverse pieces or bolsters 1,4, as shown at 15.

Surrounding the transverse v pieces or bolsters 14 midway the ends thereof are yokes or clamps 16, held in place by bolts 17. These clamps 16 serve to ri idly connect supporting bow-springs 18 wit the transverse pieces 14. The upper sets 6 of the end springs 5 are rigidly connected with the outer ends of swinging arms or'levers 19, by means of bolts 20 or the like. Rigidly connected with the upper sets 10 of the springs 9 are swinging levers or arms 21 by means of bolts 22. Each of the arms or levers 19 and 21 is provided near its forward end with a depending clamp or bracket 23, held in rigi?1 enlgggement witlli is o t 1s engage its beam by a bolt 24. by a link 25, which has its lower portion extending through an eye 26 formed at the outer end of the bow-s ring 18. The levers 19 and 21 are provided at their inner ends with 'apertured heads 27 and 28 respectively, rigidly connected therewith by bolts 29 or the like. Bolts 30 pass through these apertured heads and through the beams 13 at this midway the ends of the beams. The

ts 30am provided on their inner ends with nuts 31 and also with spacing elements 32. The numeral 33 designates coil springs having their lower ends engaging the longitudinal beams 4. At the lower ends of these coil sprmgs the material thereof is assed provided with securin means 34. At the upper ends of the spr1ngs,33 the turns thereof are in the form of eyesor 100 s 35, which surround bolts 30 between the eads 27 and 28. It is thus seen that the levers or arms 19 and 21 form an intermediate flexible supporting structure, connected with the s rings 5 and 9 at its opposite ends and su stantially midway such ends with the inner auxiliary frame comprising beams 13.

The body of the vehicle is disposed upon and suitably connected with the inner aux iliary frame comprising the beams 13.

In the use of the device the end springs 5 and 9 and the bow-springs 18 absorb the prima shocks which would otherwise be transm tted from the main frame including the beams 4 to the auxiliary frame including the beams 13. The coil springs 33 aid in yieldingly'supporting the auxlliary frame midway lts ends and also absorb the. rebound or secondary shocks of this frame.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that certain changes,in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim v 1. In a device'of the character described, a main wheeled frame, an intermediate flexible supporting structure, spring connecting means between the-end ortions of the main wheeled frame and said intermediate flexible supporting structure, an auxiliary frame being between its ends pivotally connected viith the intermediate flexible supporting s ructure to be swung in a vertical plane with relation thereto, and sprin connecting means between end ortions of t e auxiliary frame and interme iate flexible supporting structure.

2. In a device of the character described, a main wheeled frame, springs connected with the ends thereof, levers connected with said springs, an auxillar frame, means connecting the inner ends 0 the levers with the sides of the auxiliary frame, supporting springs connected with the end pieces of said auxiliary frame, and connecting means between the supporting springs and said levers.

'3. In a device of the character described, a main wheeled frame, springs connected withthe ends thereof, levers connected with said springs, an auxiliary frame, means connecting the inner ends 0 the levers with the sides of the auxiliary frame, supporting springs connected with the end pieces of said auxiliary frame, connecting means between the supporting springs and said le-' vers, and coil springs connected with the inner ends of the levers and the intermediate portion of the main wheeled frame.

4:. In a device of the character described, a main wheeled frame, leaf-springs connected with the ends thereof, levers connected with the leaf-springs, an auxiliary frame, means pivotally connecting the inner ends of said levers with the auxiliary frame substan-.

bow-springs connected with the en pieces of the auxiliary frame, and means pivotally .tially midway the ends thereof, supporting connecting the ends of the supporting bowsprin with said levers.

5. g a device of the character described,

a main wheeled frame, an intermediate suporting structure, sprm connecting means Between end portions 0 the main wheeled frame and intermediate supporting struc- I ture, an auxiliary frame pivotally connected with the intermediate supportingstructure to be swung in a vertical plane with relation thereto, and spring connecting means between end portions of said auxiliary frame and said intermediate supporting structure.

6. In a device of the character described, an intermediate flexible supporting structure comprising levers having their adjacent inner ends pivotally connected, suitable supporting means for said levers, an auxiliary frame pivotally connected midway its ends with said levers at their "ivot points, and

spring connecting means etween end portionsof the auxiliary frame and intermediate flexible supporting structure.

In testimon whereof I afiix my signature in presence 0 two witnesses.

THOMAS W. DUNN.

Witnesses EDWARD J. MEAGHIER, LEE A. McCRAoKnN. 

